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9.
Tighten the locknut until the spanner bushing
bottoms against the inside of the caster forks
(Figure
53).
10.
Grease the fitting on the caster wheel.
Checking the Wheel-Lug
Nuts
Service Interval: After the first 100 hours—Check the
wheel-lug nuts.
Check and torque the wheel lug nuts to 115 to 142
N∙m (85 to 105 ft-lb).
Checking the Wheel-Hub
Nuts
Service Interval: After the first 100 hours—Check the
wheel-hub nuts.
Every 500 hours—Check the wheel-hub nuts.
Check and torque the wheel hub nuts to 286 to 352
N∙m (211 to 260 ft-lb).
Cooling System
Maintenance
Cleaning the Air-Intake
Screen
Service Interval: Before each use or daily
Before each use, remove any buildup of snow, dirt,
or other debris from the cylinder and cylinder-head
cooling fins, air-intake screen on the flywheel end,
and the carburetor-governor levers and linkage. This
helps ensure that adequate cooling and correct engine
speed, and reduces the possibility of overheating or
mechanical damage to the engine.
Cleaning the Cooling
System
Service Interval: Every 100 hours—Check and clean
the engine cooling fins and shrouds.
1.
Disengage the PTO and engage the parking
brake.
2.
Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3.
Remove the air-intake screen and fan housing
(Figure
54).
4.
Clean the debris and grass from the engine
parts.
5.
Install the air-intake screen and the fan housing
(Figure
54).
1. Guard and engine
air-intake screen
2. Fan housing
41
Figure 54
3. Engine-oil cooler
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